JP3264229B2 - Clemonrock device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clemon lock device in which a pair of upper and lower locking rods are simultaneously driven to a locking position or an unlocking position by rotation of an operation handle.

[0002]

2. Description of the Related Art In a conventional clamp lock device disclosed in Japanese Utility Model Laid-Open Publication No. 5-47272, a handle shaft of an operation handle supported by a case body and a pair of upper and lower locks for locking a door to a fixed frame body. An interlocking link mechanism is interposed between the stop rod and the crank. The interlocking link mechanism is slidably guided and fitted to the crank connected to the handle shaft and the case body, and the locking rod is connected to the tip. A pair of upper and lower sliders, and an intermediate link pivotally connected at its distal end to a proximal end of the slider by a pivot and pivotally coupled at its proximal end to the distal end of the crank by a pivot.

In this clemon lock device, when the operation handle is rotated forward and backward, the slider moves up and down linearly,
The door is locked with respect to the fixed frame by inserting the tips of the upper and lower locking rods into the receiving holes of the metal fittings on the fixed frame side.A cam slope is provided at the tip of the locking rod. The cam slope is brought into sliding contact with the edge of the receiving hole of the receiving member to draw the door toward the fixed frame, thereby tightening the sealing packing between the fixed frame and the door.

[0004] However, in the field of communication shelters and the like that require a high degree of waterproofing performance, the packing has a strong repulsive force. Therefore, it is necessary to apply a considerably large force to this tightening. Has been pointed out.

[0005]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to obtain a necessary and sufficiently large tightening force without fail.
The door can be locked and sealed with good operability , and the locking position
The lock rod is unlocked even if vibration and shock are applied
The purpose of the present invention is to provide a Clemonrock device that does not move to the outside.

[0006]

Means for Solving the Problems Hereinafter, a description will be given using reference numerals in the accompanying drawings. In the clemon lock device of the present invention, a handle shaft of an operation handle 3 is provided at a central portion of a case main body 2 fixed to a door 1. 4 is rotatably supported by a hub 5 into which a lock rod 8 is inserted, and a slider 9 to which a locking rod 8 which is engaged with and disengaged from a metal receiving member 7 on the fixed frame body 6 is slid vertically above and below the case body 2. The base end of the interlocking lever 10 is pivotally attached to the case main body 2 at the lower left side and the upper right side of the hub 5 by a fixed pivot 11 at the lower left and upper right sides of the hub 5. Move the base end to the first movable pivot 1
3, the distal end of the drive link 12 is pivotally connected to the intermediate portion of the interlocking lever 10 by the second movable pivot 14, and the proximal end of the passive link 15 is connected to the distal end of the interlocking lever 10 in the third direction.
The movable link 16 is pivotally connected, and the distal end of the passive link 15 is pivotally connected to the base end of the slider 9 by the fourth movable pivot 17 to form a toggle joint mechanism.

The handle shaft 4 and the fourth movable pivot 17 are arranged on the vertical center line of the case body 2, and when the slider 9 is in the retracted position, the second movable pivot 14 moves the vertical center line to the third movable pivot. While coming to a position slightly over 16 side,
When the slider 9 is in the forward position, the second movable pivot 14
The lengths and pivot positions of the drive link 12, the interlocking lever 10, and the passive link 15 are set so that the position of the drive link 12, the interlocking lever 10, and the passive link 15 slightly exceeds the vertical center line on the fixed pivot 11 side.

In this unlocked state, the upper and lower sliders 9 are in the retracted position as shown in FIG. 7 in the unlocked state in which the distal end of the locking rod 8 has escaped from the receiver 7 on the fixed frame side. Yes, interlocking lever 10 and drive link 12
And the passive link 15 are folded close to each other, and the first movable pivot 13 has been moved to a position substantially beside the handle shaft 4,
The second movable pivot 14 is located at a position slightly above the vertical center line of the case body 2 toward the third movable pivot 16. When the operating handle 3 is rotated in the clockwise direction in this state, the interlocking lever 10 is rotated by the driving link 12 in the clockwise direction around the fixed pivot 11, and the passive link 15 is pushed by the interlocking lever 10. The slider 9 moves in a direction away from the hub 5, and the slider 9 is advanced. At this time, the passive link 15 rotates counterclockwise about the fourth movable pivot 17.

When the slider 9 is driven forward in this manner, the locking rod 8 enters the receiving hole of the receiving metal 7, and the cam slope 8a at the tip of the locking rod 8 slides on the edge surface of the receiving hole. By contact, the door 1 is attracted to the fixed frame 6 side, and the packing mounted between the door 1 and the fixed frame 6 is compressed. Since the drive link 12, the interlocking lever 10, and the passive link 15 having the above arrangement form a toggle joint mechanism, the rotational moment of the operation handle is enlarged, and a sufficiently large driving force can be obtained. Therefore, even a packing having a large repulsive force can be tightened by a necessary and sufficient amount.

As described above, when the slider 9 is in the forward position, that is, in the locked position, the second movable pivot 14 is located at a position slightly over the center line in the vertical direction of the case main body 2 toward the fixed pivot 11, and the so-called death Since the point is exceeded, the interlocking lever 10 is rotated in the counterclockwise direction even if a vibration or impact is applied, and the lock is not unintentionally released.

[0011]

In the illustrated embodiment, the case body 2 is composed of a base member 18, a front lid member 19 and a cover member 20, as shown in FIGS. The base member 18 and the front lid member 19 are assembled with screws 21 and screws 26 with the guide roller 22 and the guide support shaft 23, the stopper cylinder 24 and the stopper support shaft 25 incorporated therein. A rotation angle regulating disk 27 is fixed to the rear side of the hub 5 by screws 29.
Of the handle member 4 restricts the rotation angle of the handle shaft 4 to a certain range.

The base member 18 and the front lid member 19, which have been stacked and assembled, are fastened and fixed to the door 1 with screws 31, and the cover member 20 is fitted and fixed from the front side.
Handle shaft 4 fitted in square hole at the base of operation reaction 3
Is prevented from being pulled out by the screw 32. The root of the operation handle 3 is inserted into the through hole 33 at the center of the cover member 20, and is fixed to the cover member 20 by a nut ring 34. The locking rod 8 is connected to the slider 9 by a connecting pin 35, and removal of the connecting pin 35 is prevented by a split pin 36. The locking rod 8 is guided by a guide 40 fixed to the door 1, and the door 1 is connected to the fixed frame 6 by a hinge 41 on the side opposite to the mounting side of the clemon lock device.

[0013]

The drive link 1 pivotally connected to the hub 5 in the thus constructed clemon lock device of the present invention.
2 and a passive link 15 pivotally attached to the slider 9 are connected via an interlocking lever 10 pivotally attached to the case main body 2 and collectively constitute a toggle joint mechanism. A large tightening force that can be compressed by a necessary and sufficient amount even in packing can be reliably obtained, and can be used with high reliability in the field of communication shelters and the like that require high waterproof performance. Ma
When the slider 9 is in the forward position, the second movable pivot
14 slightly crosses the vertical center line on the fixed pivot 11 side.
Vibrations and shocks in the locked state
External force acts in the direction to move the slider 9 backward
However, the interlocking lever 10 rotates counterclockwise to
Idar 9 does not move backwards and locks unintentionally
It will not be released.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a communication shelter using a clemon lock device according to an embodiment of the present invention,
The door is unlocked.

FIG. 2 is a front view of the clemon lock device.

FIG. 3 is a left side view of the clemon lock device.

FIG. 4 is an exploded perspective view of the Clemon Lock device with a cover member removed.

FIG. 5 is a perspective view of a state in which a base member and a front lid member of the clemon lock device are further disassembled.

FIG. 6 is a central vertical cross-sectional view of the clemon lock device.

FIG. 7 is a front view when the base member of the clemon lock device is exposed, and shows a state where the slider is at a retracted position.

FIG. 8 is a front view when the base member of the clemon lock device is exposed, and shows a state where the slider is at a forward position.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door 2 Case main body 3 Operation handle 4 Handle shaft 5 Hub 6 Fixed frame 7 Receiving 8 Locking rod 8a Cam slope at the tip of locking rod 9 Slider 10 Drive lever 11 Fixed pivot 12 Drive link 13 First movable pivot 14 second movable pivot 15 passive link 16 third movable pivot 17 fourth movable pivot 18 base member 19 front lid member 20 cover member

Claims (1)

(57) [Claims] 1. A hub 5 into which a handle shaft 4 of an operation handle 3 is inserted is rotatably supported at a central portion of a case body 2 fixed to a door 1, and is engaged with and disengaged from a holder 7 on a fixed frame 6 side. A slider 9 to which a locking rod 8 to be connected is connected is provided in the upper and lower parts of the case body 2 by sliding in the vertical direction, and the base end of the interlocking lever 10 is located at the lower left and upper right parts of the hub 5. It is pivotally attached to the main body 2 by a fixed pivot 11, and the base end of the drive link 12 is pivotally attached to the left and right peripheral edges of the hub 5 by the first movable pivot 13. The second movable pivot 14 pivotally connects the base end of the passive link 15 to the distal end of the interlocking lever 10 by the third movable pivot 16, and the distal end of the passive link 15 is moved by the fourth movable pivot 17. Toggle by pivoting on the base end of slider 9 A joint mechanism is configured, and the handle shaft 4 and the fourth movable pivot 17 are arranged on the vertical center line of the case body 2, and when the slider 9 is at the retracted position, the second
When the movable pivot 14 comes to a position slightly over the vertical center line toward the third movable pivot 16 side, when the slider 9 is in the forward position, the second movable pivot 14 moves the vertical center line to the fixed pivot 11 side. The length of the drive link 12, the interlocking lever 10, and the passive link 15 and the pivotal position are set so that the drive link 12, the link 10 and the passive link 15 are located slightly over the vehicle.